Grain-door.



No. 740,686. v PATENTED OCT. 6, 1903.

' J. 0. OAKLEY.

GRAIN DOOR.

ArPLmATIox FILED Jun 2 1902.

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UNITED STATES Patented October 6, 1903.

PATENT OFFIc To, JOSEPH JOHN- WESTGATE AND MONTREAL, CANADA.

GRAIN- CHARLES LEANDER HIGGINS, OF

noon.

srnclrlca'rrorv forming part of Letters Patent No. 740,686, dated October 6, 190a Application filed Jnne.26,1902. fierial No. 113,305. (No model.)

To aZl whom it may concern.-

Be it known that I, JAMES OMAR OAKLEY, of the city ofMontreal, Province of Quebec; Canada, have invented certain new and useful Improvements in Grain-Doors; and I do hereby declare that the following is a full, clear, and exact description of the same.

My invention relates particularly to the manner of hanging the grain-doors of freightcars adapted for use at times in the shipment of grain, and incidentally to the particular construction of the doors themselves, the object of the invention being to facilitate the removal of the door'completely away from .15-

the. door-opening and render same less liable to damage.

The invention may be said, briefly, to consist in providing a door of particular construction with projections to take into guideways in the side of the car, whereby the door may be raised and moved away from the door-openin g, the door being preferably made in two sections, each consisting of a series of metal-bound members. For full comprehension, however, of my invention reference must behad to the accompanying drawings, forming a part of this specification, in which like symbols indicate the same parts, and wherein- Figure 1 is a longitudinal vertical sectional view of the body of a freight-car provided with my invention. Fig. 2 is a similar view with one part of my improved door shown displaced in full lines and with both parts of the door shown displaced in dotted lines. Fig. 3 is an exterior view with the door closed;

and Fig. 4: is an enlarged transverse verticalsectional view taken on line 4 4:, Fig. 1. Fig. 5 is a detailscctional view illustrating the latch for yieldingly retainingthe door parts in place.

The car-body b may be of any approved construction. A pair of angular guidinggrooves are formed inside of the car, consisting of vertical portions 0 and d and horizontal portions 6 and f. The vertical portions are located one at each side of and (i being of less height than the door-opening, while the 71. The door is preferably madeintwo parts j and 70, each having a pair of studs l and 'm' taking into and adapted to slide along the door parts are lifted and slid along the horizontal grooves away from the door-opening, the partj being shifted first and then the part 70, (see Fig. 2,) or the lower part it only may be usedas, for instance, when coal is to be carried. To allow of this lifting and sliding of the door pa'rts,it is necessary that they be light in weight and at the same time of sufficient strength to withstand the pressure of the contents of the car-and the wear and tear of shifting totheirdiflerent positions. To this end it is essential to my invention that the door parts he each constructed of a series of metallic channel members having the flanges g of each riveted to the flanges 0f the channel members above and below it, and a wooden filler 'r fills each of said channel members and imparts rigidity to the door parts, while the metallic channels bind the whole together and presents a tough and smooth outer surface, Fig. 3, and even inside surface, Figs. 1, 2, and 4.

To retain the upper door part against accidental displacement from its position across the door-opening, I provide it with a latch consisting, preferably, of a bent piece of flat steel a, embedded in one side edge thereof and adapted to take into a notcho in the door-frame, said latch having a laterally-projecting lug w, whereby it can be sprung back out of its notch to release the door part, while each of the door parts when in its position away from the door-opening slips beneath a rigid retaining-bar a, secured to the side of the car. I

A semicircular valvular port 2 is cut through the lowermost member of the lower part of the door and is controlled by a semicircular valvular disk 3, pivoted in a position to hang over said valvular port, this disk having a pair of recesses 4 to enable it to be shifted away from the port from the outside.

What I claim is as follows:

1. In a car for carrying grain, the combination with a pair of vertically and horizontally movable doors located one above the other when in their closed position and extending across the lower portion of the dooropening, of means for guiding said doors one after the other in the same path verticallyv from the bottom to the top of the door-opening, and means for guiding both doors one after the other horizontally and laterally from the upperend of the door-opening.

2. In a car for carrying grain, the combination with a pair of vertically and horizontally movable doors located one above the other when in their closed position and extending across the lower portion of the dooropening, of means for guiding said doors one after the other in the same path vertically from the bottom to the top of the door-opening and means for guiding said doors one after the other in the same path horizontally and laterally from the upper end of the dooropening, thus providing for one door to follow the other away from the door-opening.

3. A car for carrying grain having a dooropening in the side thereof, a pair of vertical guiding-grooves one at each side of said opening, one of said guiding-grooves extending from within a short distance of the bottom of the car to a point above the top of said opening, and the other extending from- Wlthllt a hopes short distance of the bottoni of the car upwardly to apoint within the height of said door-opening, a pair of parallel horizontal guiding-grooves, one being connected to the upper end of the longer vertical groove, and the other being connected to the upper end of the shorter vertical groove, and a door having studs at difierent distances from the top thereof and sliding in said guiding-grooves substantially as described and for the purpose set forth.

4. A car for carrying grain,having a dooropening in the side thereof, a pair of vertical guiding-grooves one at each side of said opening, one of said guiding-grooves extending from within a short distance of the bottom of the car to a point above the top of said opening and the other extending from within a short distance of the bottom of the car upwardly to a point within the height of said door-opening, a pair of horizontal guidinggrooves, one being connected to the upper end of the longer vertical groove, and the other being connected to the upper end of the shorter groove, the free ends of said horizontal guiding-grooves being downwardly offset, and a door having studs at different distances from the top thereof and sliding in said guiding-grooves substantially as described and for the purpose set forth. I

In testimony whereof I have affixed my signature in presence of two witnesses.

JAMES OMAR OAKLEY. Witnesses:

FRED J. SEARS, ARTHUR H. EVANS. 

